A universal device for measurement of the oxygen content in air, liquids and biological tissues

A universal device for measurement of the oxygen partial pressure and its content in air, liquids and biological tissues is described. It can be used for measurement of these parameters by various electrodes with high accuracy in a wide range of their changes. Simultaneously the device permits one to control the electrode characteristics and the experimental conditions. It can be used in stationary and field conditions in biological, medical, ecological and chemical research.